Windows 7 Calculator in Windows Vista
March 23, 2009 Windows Vista Tips
Windows 7 will most likely put a smile any user’s face with its redefined interface and the set of redesigned tools. The 
calculator was transformed into a more consumer-oriented product capable of serving both more science prone user’s as well as the average users.
The application can be downloaded as a standalone product and run from portable devices with no problems, as it requires no installation; a double-click on the executable will suffice to launch it. It also works great on Vista.
There are plenty of ways to do this and besides running Take Ownership registry tweaks, or using third-party software such as Unlocker, there is a simple but dangerous solution. It is a matter of security permission that can be fixed from the Properties of the System32 folder.
Get into System32′s properties and access the Security tab. Click on “Advanced”, you should now be in the Permissions tab, click on the Edit button. Another Permissions window will pop-up, listing once more the permission entries. Simply check the Full control checkbox to gain complete power over the folder. Click OK.
Now you have to replace the old Windows Calculator with the fresh Windows 7 one. The original files that need to be replaced are calc.exe located in the root of System32 and calc.exe.mui in the “en-US” folder of System32. If you have made backups, copy the files into Windows 7 Calculator archive in the exact place with the original one.
If everything has been done correctly, Windows 7 Calculator should be the default calculator for your system.
Once all this done, remove the full control so that no unfortunate accidents take place because System32 is a very sensitive folder for the system.
